RT Journal Article T1 Mechanisms Involved in the Relationship between Vitamin D and Insulin Resistance: Impact on Clinical Practice. A1 Contreras-Bolívar, Victoria A1 García-Fontana, Beatriz A1 García-Fontana, Cristina A1 Muñoz-Torres, Manuel K1 25-hydroxyvitamin D or calcidiol (25(OH)D) K1 25-hydroxyvitamin D-1alpha-hydroxylase (CYP27B1) K1 calcitriol (1,25(OH)2D) K1 homeostasis model assessment of insulin resistance (HOMA-IR) type 2 diabetes K1 insulin resistance K1 metabolic syndrome (MS) K1 obesity K1 polycystic ovary syndrome (PCOS) K1 vitamin D K1 vitamin D receptor (VDR) AB Recent evidence has revealed anti-inflammatory properties of vitamin D as well as extra-skeletal activity. In this context, vitamin D seems to be involved in infections, autoimmune diseases, cardiometabolic diseases, and cancer development. In recent years, the relationship between vitamin D and insulin resistance has been a topic of growing interest. Low 25-hydroxyvitamin D (25(OH)D) levels appear to be associated with most of the insulin resistance disorders described to date. In fact, vitamin D deficiency may be one of the factors accelerating the development of insulin resistance. Vitamin D deficiency is a common problem in the population and may be associated with the pathogenesis of diseases related to insulin resistance, such as obesity, diabetes, metabolic syndrome (MS) and polycystic ovary syndrome (PCOS). An important question is the identification of 25(OH)D levels capable of generating an effect on insulin resistance, glucose metabolism and to decrease the risk of developing insulin resistance related disorders. The benefits of 25(OH)D supplementation/repletion on bone health are well known, and although there is a biological plausibility linking the status of vitamin D and insulin resistance supported by basic and clinical research findings, well-designed randomized clinical trials as well as basic research are necessary to know the molecular pathways involved in this association. YR 2021 FD 2021-10-01 LK https://hdl.handle.net/10668/26105 UL https://hdl.handle.net/10668/26105 LA en DS RISalud RD Apr 8, 2025